I/UCRC FRP: Collaborative Research / Fundamental Understanding of Localized Deformation under Severe Microstructural Gradients

I/UCRC FRP：协作研究/严重微结构梯度下局部变形的基本理解

• 批准号: 1330986
• 负责人: John DuPont
• 金额: $ 5万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-01 至 2016-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1330986&HistoricalAwards=false
• 关键词: UCRC; FRP; Collaborative; Research; Fundamental

Program Director's Recommendation Center for Integrative Materials Joining Science for Energy Applications (CIMJSEA) Proposal #1330273, 1330986 This proposal seeks funding for the Center for Integrative Materials Joining Science for Energy Applications (CIMJSEA) located at the Ohio State University, and Lehigh University. Funding Requests for Fundamental Research are authorized by an NSF approved solicitation, NSF 11-570. The solicitation invites I/UCRCs to submit proposals for support of industry-defined fundamental research. The research described in this proposal will provide fundamental insights into the causes of reduced creep life in welds of modern superalloys that have severe crystallographic gradients (equiaxed and columnar), compositional gradients (microns to nm), and precipitate (0 to 80%) gradients. The ultimate goal is to develop the testing methodology that will feed the creation of digital "apps" that predict the creep response of welded structures. The ability to predict localized deformation in welds will accelerate the deployment of high temperature materials. Successful deployment will lead to higher energy efficiency of utilities and reduction of greenhouse gas emissions. The results of this research will provide an important step to improve the understanding of the relatively poor joint properties. This will pave the way for developing solutions so that new materials can be used to their fullest capacity in future generation power plants. The research conducted along the way will also provide an opportunity to train engineers who will be prepared to address these complex problems in materials for energy applications. Potential benefits to member organizations include deployment of digital apps for welds, capable of predicting the local properties as a function of crystallographic, compositional and microstructural gradients.

计划总监的集成材料建议中心加入能源应用科学（CIMJSEA）提案＃1330273，1330986该建议为位于俄亥俄州立大学和莱希大学的能源应用程序（CIMJSEA）的综合材料中心寻求资金。 NSF批准的招标（NSF）11-570授权进行基础研究的资金请求。该招标邀请I/UCRC提交建议，以支持行业定义的基础研究。该提案中描述的研究将提供基本见解，以了解具有严重晶体学梯度（Equiaxed和columear），组成梯度（微米至NM）以及沉淀物（0至80％）梯度的现代超级合金的蠕变寿命降低的原因。最终目标是开发测试方法，该方法将供应预测焊接结构的蠕变响应的数字“应用程序”的创建。预测焊缝中局部变形的能力将加速高温材料的部署。成功的部署将导致公用事业的能源效率更高，并减少温室气体排放。这项研究的结果将为提高对相对较差的关节特性的理解提供重要的步骤。这将为开发解决方案铺平道路，以便可以将新材料用于未来一代发电厂的最大容量。沿途进行的研究还将为培训工程师提供机会，他们准备解决能源应用材料中这些复杂问题的机会。对成员组织的潜在好处包括用于焊接的数字应用程序，能够预测局部特性，这是晶体学，成分和微观结构梯度的函数。